. >> unfortunately, once you post it, it's there, it's embedded in cyberspace. you can't take it back. >> reporter: just ten years ago, only about 35% of americans went online. today it's about 80%. the internet has changed the way we communicate, but anyone can say almost anything, whether it's ground breaking, time wasting nonsense or hurtful. >> it's like a minute generation where we can get all things in minutes. >> reporter: megan says she spends about seven hours a day not talking, but communicating online. facebook, twitter, you name it. >> it's definitely easier to say something on a computer rather than face-to-face, because you don't ve to deal with that person right then and there. >> reporter: but megan is leery of becoming desensitized online. like many, shocked in recent weeks by news of young men and women being driven to suicide after they were bullied or taunted by the net. >> what's private and what's public is no longer clear. people are not thinking about this at the time they do it. and the repercussions are enormous. >> reporter: and words